Portable sawmill.



E. CARNEY. PORTABLE SAWMILL.

(Application filed July 5, 1901.1

No. 695,!94. Patented Mar. ll, I902.

(No Model.) 28heets-Sheat ECarnGZ/d witnesses Patented Mar. ll, I902. E.GARNEY. PORTABLE SAWMILL.

'(Applicabion filed July 5, 1901. (No Model.) 2 Shaets-Sheet 2.

nu-auto: EC'arney UNITED STaTns ATENT @Trrcn.

ESTES CARNEY, OF PRAIRIEGROVE, ARKANSAS.

PORTABLE SAWMILL.

SPECIFICATION forming part of Letters ZPatent No. 695,194,.dated March 11, 1902.

Application filed July 5, 1901. Serial No. 67,191. (No model.)

To all whom it may concern:

Be it known that I, ESTES CARNEY, a citizen of the United States,residing at Prairiegrove, in the county of Washington and State ofArkansas, have invented certain new and useful Improvements in PortableSawmills; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to woodworking machinery, and particularly to theclass for sawing logs into slabs or boards, and aims to provide asawmill involving structural features and which is readily portable, soas to be transported from place to place and set up for use with thegreatest despatch possible, thereby saving time and labor and enabling amaximum amount of work to be performed in a given time. The machine isspecially adapted for use in rural districts where a limited amount oftimber is to be cut up for available service, the machine being movedfrom one pile to another in a circuit or as required.

For a full description of the invention and the merits thereof, and alsoto acquire a knowledge of the details of construction of the means foreffecting the result, reference is to be had to the followingdescription and drawings hereto attached. 7

While the essential and characteristic features of the invention arenecessarily susceptible of modification, still the preferred embodimentof the invention is illustrated in the accompanying drawings, in which-Figure 1 is a top plan view of a sawmill embodying the invention. Fig. 2is a side view thereof. Fig. 3 is an enlarged transverse section of thecarriage and framework about on the line X X of Fig. 1. Fig. f is afront view of the forward axle and front end of the frame, showing moreparticularly the means for securing the front axle and leveling theframe, a portion of the axle and frame being broken away. Fig. 5 is asection on the line YY of Fig. 4.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The sawmill is mounted upon ground-wheels 1 and 2, secured to the armsof axles 3 and 4 in any desired way. The rear axle 3 is fixed, whereasthe front axle 4 is adapted to turn to admit of proper guidance of thesawmill when drawing it over the road or field. For this purpose atongue 5 is connected with the front axle 4 in the usual manner and isadapted to have the team hitched thereto. The frame for supporting theoperating parts is approximately of rectangular form and comprises aseries of longitudinal timbers 6, 7, 8, and 9 and cross-timbers 10,connecting the series of longitudinal timbers. The timbers 6 and 7 arehigher than the timbers 8 and 9 and are connected by transverse timbers11 and are provided at a point between their ends with bearings in whichthe saw-mandrel 12 is mounted for rotation. A band-pulley 13 is providedat the outer end of the mandrel l2 and is adapted to be driven from aportable engine or other source of power in any convenient way. Thetimbers 8 and 9 are provided with rails 14, which constitute a track forthe carriage 15 to travel upon. This carriage, carrying the log to becut up into slabs, stubs, and the like, is caused to travel backward andforward upon the track by any well-known form of feed mechanism, and, asshown, this feed mechanism is of the rope type and consists of a rope orcable 16, connected at its ends to opposite ends of the carriage andpassing over a guide-pulley 17 at each end of the track and having itsmiddle portion wrapped around a drum 18 on a shaft 19, geared to thesaw-mandrel 12 by means of an open and crossed belt in the usual way,the carriage being automatically tripped by any style of trip mechanism.In order that the track may be of proper length, it is provided with endsections 20, detachably fitted thereto, so as to be readily removed forreducing the length of the machine either for transportation or storage.These track-sections 20 are supported at their outer ends by props 21,and their inner ends are halved at the extremities of the centralportion of the track, hooks 22 and eyes 23 being employed as fasteningmeans for connecting the end sections with the middle section when themachine is set up for use. These hooks 22 are extremely heavy and stoutand are placed with reference to the eyes 23 so as to be driven into thelatter, thereby drawing the end and middle sections together when thehooks are driven home into the eyes. The track is lower than the topedge of the timbers 6 and 7, so as to admit of the saw-mandrel beingabout in the plane of the upper surface of the carriage 15, whereby amaximum amount upon which the base-pieces 31 are supported and held formovement crosswise of the carriage by the shoulders at the inner end ofthe notches engaging with the'inner sides of the bars 25, as shown mostclearly in Fig. 3. The base-pieces 31 have longitudinal slots 32, inwhich a pin or bolt 33 operates, each pin or bolt having its lower endthreaded for the reception of the feed-screw 28, by means of which theknees are adjusted transversely of the carriage to set up the log aftera slab has been out therefrom. The end portions of each feed-screw 28snugly fit within corresponding longitudinal slots 27, and by engagementwith the pin or bolt 33 holds both the knee and the supporting-basetherefor from vertical displacement. Prior to placing the log inposition upon the carriage the knees can be adjusted upon the carriageto any desired distance apart, and after the log has been placed uponthe carriage and the dogs 30 orother holding means engaged therewith theknees cannot be separated ormoved together. Should it become necessaryto clamp the feed screws to hold the knees against casual displacement,the nuts 34, fitted upon the projecting threaded ends thereof, can beturned up, thereby clamping the side bars of the carriage between theshoulder at one end of each feed-screw and the nut 34: at the oppositeend. This will be apparent in Fig. 3.

As previously stated, the sawmill is mounted upon wheels,so as to bereadily transported. Hence it is necessary to secure the front axle andto provide for leveling of the frame. Referring to Fig. at of thedrawings, it .will be seen that a wedge-block 35 is provided at one endof the axle t to come between it and the adjacent end of thecross-timberlO, and concentric screws 36 and 37 are provided at theopposite end of the axle 4: to cooperate therewith and with the adjacentend of the beam 10. The wedge-block 35 is slidably mounted upon the endportion of the axle 4t and is adapted to be driven inward upon the axle,so as to come beneath the inclined portion 38 of the timber 10 andsecure the parts 4 and 10, a pin 39 securing the wedge-block 35 after ithas been forced into wedging engagement with the part 38. The screw 37is tubular and is mounted in a threaded opening provided near the end ofthe timber 10, and its lower end has a'fork 40, connected by aswiveljoint therewith to embrace opposite sides of the axle t. The screw37 is backed when it is required to withdraw the fork 40 from engagementwith the axle 4:. The screw 36, threaded within the screw 37, has afootpiece 41 at its lowerend to engage with the top side of the axle 4,so as to act in conjunction with the wedge-block 35 to enable the frameto he leveled when required.

Having thus described the invention, what is claimed as new is- 1. In asawmill,-a carriage having its longitudinal bars slotted,longitudinally-slotted base-pieces fitted to the carriage, kneesslidably mounted upon the base-pieces, bolts or pins pendent from theknees and passing through the longitudinal slots in the basepieces, andfeed-screws mounted in the longitudinal slots of the carriage havingscrewthread connection with the pins or bolts pendent from the knees tohold the latterin place and provided for transverse adjustment thereofupon the carriage, substantially as set forth.

2. In combination, a carriage having its bars longitudinally slotted,and base-pieces fitted upon the carriage and'having a longitudinal slot,a knee slidably mounted upon the base-pieces and having a pendentportion passing through the slot thereof, a feed-screw passing throughthe longitudinal slots of the carriage and having screw-threadengagement with the pendent portion of the knee for holding the latterand the base-piece in place and admitting of transverse adjustment ofthe knee, and a clamp-nut fitted to the projecting end of the feed-screwfor preventing possible movement of the latter in the longitudinal slot,substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ESTES OARNEY. IVitnesses:

E. S. MoDANInL, '1. F. J ONES, Jr.

